/* * Modules * * Copyright 1995 Alexandre Julliard * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include "config.h" #include "wine/port.h" #include #include #include #include #include #ifdef HAVE_UNISTD_H # include #endif #include "wine/winbase16.h" #include "winerror.h" #include "ntstatus.h" #include "windef.h" #include "winbase.h" #include "winternl.h" #include "thread.h" #include "module.h" #include "kernel_private.h" #include "wine/debug.h" #include "wine/unicode.h" #include "wine/server.h" WINE_DEFAULT_DEBUG_CHANNEL(module); WINE_DECLARE_DEBUG_CHANNEL(loaddll); static WCHAR *dll_directory; /* extra path for SetDllDirectoryW */ static CRITICAL_SECTION dlldir_section; static CRITICAL_SECTION_DEBUG critsect_debug = { 0, 0, &dlldir_section, { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList }, 0, 0, { 0, (DWORD)(__FILE__ ": dlldir_section") } }; static CRITICAL_SECTION dlldir_section = { &critsect_debug, -1, 0, 0, 0, 0 }; /**************************************************************************** * GetDllDirectoryA (KERNEL32.@) */ DWORD WINAPI GetDllDirectoryA( DWORD buf_len, LPSTR buffer ) { DWORD len; RtlEnterCriticalSection( &dlldir_section ); len = dll_directory ? FILE_name_WtoA( dll_directory, strlenW(dll_directory), NULL, 0 ) : 0; if (buffer && buf_len > len) { if (dll_directory) FILE_name_WtoA( dll_directory, -1, buffer, buf_len ); else *buffer = 0; } else { len++; /* for terminating null */ if (buffer) *buffer = 0; } RtlLeaveCriticalSection( &dlldir_section ); return len; } /**************************************************************************** * GetDllDirectoryW (KERNEL32.@) */ DWORD WINAPI GetDllDirectoryW( DWORD buf_len, LPWSTR buffer ) { DWORD len; RtlEnterCriticalSection( &dlldir_section ); len = dll_directory ? strlenW( dll_directory ) : 0; if (buffer && buf_len > len) { if (dll_directory) memcpy( buffer, dll_directory, (len + 1) * sizeof(WCHAR) ); else *buffer = 0; } else { len++; /* for terminating null */ if (buffer) *buffer = 0; } RtlLeaveCriticalSection( &dlldir_section ); return len; } /**************************************************************************** * SetDllDirectoryA (KERNEL32.@) */ BOOL WINAPI SetDllDirectoryA( LPCSTR dir ) { WCHAR *dirW; BOOL ret; if (!(dirW = FILE_name_AtoW( dir, TRUE ))) return FALSE; ret = SetDllDirectoryW( dirW ); HeapFree( GetProcessHeap(), 0, dirW ); return ret; } /**************************************************************************** * SetDllDirectoryW (KERNEL32.@) */ BOOL WINAPI SetDllDirectoryW( LPCWSTR dir ) { WCHAR *newdir = NULL; if (dir) { DWORD len = (strlenW(dir) + 1) * sizeof(WCHAR); if (!(newdir = HeapAlloc( GetProcessHeap(), 0, len ))) { SetLastError( ERROR_NOT_ENOUGH_MEMORY ); return FALSE; } memcpy( newdir, dir, len ); } RtlEnterCriticalSection( &dlldir_section ); HeapFree( GetProcessHeap(), 0, dll_directory ); dll_directory = newdir; RtlLeaveCriticalSection( &dlldir_section ); return TRUE; } /**************************************************************************** * DisableThreadLibraryCalls (KERNEL32.@) * * Inform the module loader that thread notifications are not required for a dll. * * PARAMS * hModule [I] Module handle to skip calls for * * RETURNS * Success: TRUE. Thread attach and detach notifications will not be sent * to hModule. * Failure: FALSE. Use GetLastError() to determine the cause. * * NOTES * This is typically called from the dll entry point of a dll during process * attachment, for dlls that do not need to process thread notifications. */ BOOL WINAPI DisableThreadLibraryCalls( HMODULE hModule ) { NTSTATUS nts = LdrDisableThreadCalloutsForDll( hModule ); if (nts == STATUS_SUCCESS) return TRUE; SetLastError( RtlNtStatusToDosError( nts ) ); return FALSE; } /* Check whether a file is an OS/2 or a very old Windows executable * by testing on import of KERNEL. * * FIXME: is reading the module imports the only way of discerning * old Windows binaries from OS/2 ones ? At least it seems so... */ static enum binary_type MODULE_Decide_OS2_OldWin(HANDLE hfile, const IMAGE_DOS_HEADER *mz, const IMAGE_OS2_HEADER *ne) { DWORD currpos = SetFilePointer( hfile, 0, NULL, SEEK_CUR); enum binary_type ret = BINARY_OS216; LPWORD modtab = NULL; LPSTR nametab = NULL; DWORD len; int i; /* read modref table */ if ( (SetFilePointer( hfile, mz->e_lfanew + ne->ne_modtab, NULL, SEEK_SET ) == -1) || (!(modtab = HeapAlloc( GetProcessHeap(), 0, ne->ne_cmod*sizeof(WORD)))) || (!(ReadFile(hfile, modtab, ne->ne_cmod*sizeof(WORD), &len, NULL))) || (len != ne->ne_cmod*sizeof(WORD)) ) goto broken; /* read imported names table */ if ( (SetFilePointer( hfile, mz->e_lfanew + ne->ne_imptab, NULL, SEEK_SET ) == -1) || (!(nametab = HeapAlloc( GetProcessHeap(), 0, ne->ne_enttab - ne->ne_imptab))) || (!(ReadFile(hfile, nametab, ne->ne_enttab - ne->ne_imptab, &len, NULL))) || (len != ne->ne_enttab - ne->ne_imptab) ) goto broken; for (i=0; i < ne->ne_cmod; i++) { LPSTR module = &nametab[modtab[i]]; TRACE("modref: %.*s\n", module[0], &module[1]); if (!(strncmp(&module[1], "KERNEL", module[0]))) { /* very old Windows file */ MESSAGE("This seems to be a very old (pre-3.0) Windows executable. Expect crashes, especially if this is a real-mode binary !\n"); ret = BINARY_WIN16; goto good; } } broken: ERR("Hmm, an error occurred. Is this binary file broken?\n"); good: HeapFree( GetProcessHeap(), 0, modtab); HeapFree( GetProcessHeap(), 0, nametab); SetFilePointer( hfile, currpos, NULL, SEEK_SET); /* restore filepos */ return ret; } /*********************************************************************** * MODULE_GetBinaryType */ enum binary_type MODULE_GetBinaryType( HANDLE hfile, void **res_start, void **res_end ) { union { struct { unsigned char magic[4]; unsigned char ignored[12]; unsigned short type; } elf; struct { unsigned long magic; unsigned long cputype; unsigned long cpusubtype; unsigned long filetype; } macho; IMAGE_DOS_HEADER mz; } header; DWORD len; /* Seek to the start of the file and read the header information. */ if (SetFilePointer( hfile, 0, NULL, SEEK_SET ) == -1) return BINARY_UNKNOWN; if (!ReadFile( hfile, &header, sizeof(header), &len, NULL ) || len != sizeof(header)) return BINARY_UNKNOWN; if (!memcmp( header.elf.magic, "\177ELF", 4 )) { /* FIXME: we don't bother to check byte order, architecture, etc. */ switch(header.elf.type) { case 2: return BINARY_UNIX_EXE; case 3: return BINARY_UNIX_LIB; } return BINARY_UNKNOWN; } /* Mach-o File with Endian set to Big Endian or Little Endian */ if (header.macho.magic == 0xfeedface || header.macho.magic == 0xecafdeef) { switch(header.macho.filetype) { case 0x8: /* MH_BUNDLE */ return BINARY_UNIX_LIB; } return BINARY_UNKNOWN; } /* Not ELF, try DOS */ if (header.mz.e_magic == IMAGE_DOS_SIGNATURE) { union { IMAGE_OS2_HEADER os2; IMAGE_NT_HEADERS nt; } ext_header; /* We do have a DOS image so we will now try to seek into * the file by the amount indicated by the field * "Offset to extended header" and read in the * "magic" field information at that location. * This will tell us if there is more header information * to read or not. */ if (SetFilePointer( hfile, header.mz.e_lfanew, NULL, SEEK_SET ) == -1) return BINARY_DOS; if (!ReadFile( hfile, &ext_header, sizeof(ext_header), &len, NULL ) || len < 4) return BINARY_DOS; /* Reading the magic field succeeded so * we will try to determine what type it is. */ if (!memcmp( &ext_header.nt.Signature, "PE\0\0", 4 )) { if (len >= sizeof(ext_header.nt.FileHeader)) { if (len < sizeof(ext_header.nt)) /* clear remaining part of header if missing */ memset( (char *)&ext_header.nt + len, 0, sizeof(ext_header.nt) - len ); if (res_start) *res_start = (void *)ext_header.nt.OptionalHeader.ImageBase; if (res_end) *res_end = (void *)(ext_header.nt.OptionalHeader.ImageBase + ext_header.nt.OptionalHeader.SizeOfImage); if (ext_header.nt.FileHeader.Characteristics & IMAGE_FILE_DLL) return BINARY_PE_DLL; return BINARY_PE_EXE; } return BINARY_DOS; } if (!memcmp( &ext_header.os2.ne_magic, "NE", 2 )) { /* This is a Windows executable (NE) header. This can * mean either a 16-bit OS/2 or a 16-bit Windows or even a * DOS program (running under a DOS extender). To decide * which, we'll have to read the NE header. */ if (len >= sizeof(ext_header.os2)) { switch ( ext_header.os2.ne_exetyp ) { case 1: return BINARY_OS216; /* OS/2 */ case 2: return BINARY_WIN16; /* Windows */ case 3: return BINARY_DOS; /* European MS-DOS 4.x */ case 4: return BINARY_WIN16; /* Windows 386; FIXME: is this 32bit??? */ case 5: return BINARY_DOS; /* BOSS, Borland Operating System Services */ /* other types, e.g. 0 is: "unknown" */ default: return MODULE_Decide_OS2_OldWin(hfile, &header.mz, &ext_header.os2); } } /* Couldn't read header, so abort. */ return BINARY_DOS; } /* Unknown extended header, but this file is nonetheless DOS-executable. */ return BINARY_DOS; } return BINARY_UNKNOWN; } /*********************************************************************** * GetBinaryTypeW [KERNEL32.@] * * Determine whether a file is executable, and if so, what kind. * * PARAMS * lpApplicationName [I] Path of the file to check * lpBinaryType [O] Destination for the binary type * * RETURNS * TRUE, if the file is an executable, in which case lpBinaryType is set. * FALSE, if the file is not an executable or if the function fails. * * NOTES * The type of executable is a property that determines which subsytem an * executable file runs under. lpBinaryType can be set to one of the following * values: * SCS_32BIT_BINARY: A Win32 based application * SCS_DOS_BINARY: An MS-Dos based application * SCS_WOW_BINARY: A Win16 based application * SCS_PIF_BINARY: A PIF file that executes an MS-Dos based app * SCS_POSIX_BINARY: A POSIX based application ( Not implemented ) * SCS_OS216_BINARY: A 16bit OS/2 based application * * To find the binary type, this function reads in the files header information. * If extended header information is not present it will assume that the file * is a DOS executable. If extended header information is present it will * determine if the file is a 16 or 32 bit Windows executable by checking the * flags in the header. * * ".com" and ".pif" files are only recognized by their file name extension, * as per native Windows. */ BOOL WINAPI GetBinaryTypeW( LPCWSTR lpApplicationName, LPDWORD lpBinaryType ) { BOOL ret = FALSE; HANDLE hfile; TRACE("%s\n", debugstr_w(lpApplicationName) ); /* Sanity check. */ if ( lpApplicationName == NULL || lpBinaryType == NULL ) return FALSE; /* Open the file indicated by lpApplicationName for reading. */ hfile = CreateFileW( lpApplicationName, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0 ); if ( hfile == INVALID_HANDLE_VALUE ) return FALSE; /* Check binary type */ switch(MODULE_GetBinaryType( hfile, NULL, NULL )) { case BINARY_UNKNOWN: { static const WCHAR comW[] = { '.','C','O','M',0 }; static const WCHAR pifW[] = { '.','P','I','F',0 }; const WCHAR *ptr; /* try to determine from file name */ ptr = strrchrW( lpApplicationName, '.' ); if (!ptr) break; if (!strcmpiW( ptr, comW )) { *lpBinaryType = SCS_DOS_BINARY; ret = TRUE; } else if (!strcmpiW( ptr, pifW )) { *lpBinaryType = SCS_PIF_BINARY; ret = TRUE; } break; } case BINARY_PE_EXE: case BINARY_PE_DLL: *lpBinaryType = SCS_32BIT_BINARY; ret = TRUE; break; case BINARY_WIN16: *lpBinaryType = SCS_WOW_BINARY; ret = TRUE; break; case BINARY_OS216: *lpBinaryType = SCS_OS216_BINARY; ret = TRUE; break; case BINARY_DOS: *lpBinaryType = SCS_DOS_BINARY; ret = TRUE; break; case BINARY_UNIX_EXE: case BINARY_UNIX_LIB: ret = FALSE; break; } CloseHandle( hfile ); return ret; } /*********************************************************************** * GetBinaryTypeA [KERNEL32.@] * GetBinaryType [KERNEL32.@] */ BOOL WINAPI GetBinaryTypeA( LPCSTR lpApplicationName, LPDWORD lpBinaryType ) { ANSI_STRING app_nameA; NTSTATUS status; TRACE("%s\n", debugstr_a(lpApplicationName)); /* Sanity check. */ if ( lpApplicationName == NULL || lpBinaryType == NULL ) return FALSE; RtlInitAnsiString(&app_nameA, lpApplicationName); status = RtlAnsiStringToUnicodeString(&NtCurrentTeb()->StaticUnicodeString, &app_nameA, FALSE); if (!status) return GetBinaryTypeW(NtCurrentTeb()->StaticUnicodeString.Buffer, lpBinaryType); SetLastError(RtlNtStatusToDosError(status)); return FALSE; } /*********************************************************************** * GetModuleHandleA (KERNEL32.@) * GetModuleHandle32 (KERNEL.488) * * Get the handle of a dll loaded into the process address space. * * PARAMS * module [I] Name of the dll * * RETURNS * Success: A handle to the loaded dll. * Failure: A NULL handle. Use GetLastError() to determine the cause. */ HMODULE WINAPI GetModuleHandleA(LPCSTR module) { WCHAR *moduleW; if (!module) return NtCurrentTeb()->Peb->ImageBaseAddress; if (!(moduleW = FILE_name_AtoW( module, FALSE ))) return 0; return GetModuleHandleW( moduleW ); } /*********************************************************************** * GetModuleHandleW (KERNEL32.@) * * Unicode version of GetModuleHandleA. */ HMODULE WINAPI GetModuleHandleW(LPCWSTR module) { NTSTATUS nts; HMODULE ret; UNICODE_STRING wstr; if (!module) return NtCurrentTeb()->Peb->ImageBaseAddress; RtlInitUnicodeString( &wstr, module ); nts = LdrGetDllHandle( 0, 0, &wstr, &ret); if (nts != STATUS_SUCCESS) { SetLastError( RtlNtStatusToDosError( nts ) ); ret = 0; } return ret; } /*********************************************************************** * GetModuleFileNameA (KERNEL32.@) * GetModuleFileName32 (KERNEL.487) * * Get the file name of a loaded module from its handle. * * RETURNS * Success: The length of the file name, excluding the terminating NUL. * Failure: 0. Use GetLastError() to determine the cause. * * NOTES * This function always returns the long path of hModule (as opposed to * GetModuleFileName16() which returns short paths when the modules version * field is < 4.0). * The function doesn't write a terminating '\0' if the buffer is too * small. */ DWORD WINAPI GetModuleFileNameA( HMODULE hModule, /* [in] Module handle (32 bit) */ LPSTR lpFileName, /* [out] Destination for file name */ DWORD size ) /* [in] Size of lpFileName in characters */ { LPWSTR filenameW = HeapAlloc( GetProcessHeap(), 0, size * sizeof(WCHAR) ); DWORD len; if (!filenameW) { SetLastError( ERROR_NOT_ENOUGH_MEMORY ); return 0; } if ((len = GetModuleFileNameW( hModule, filenameW, size ))) { len = FILE_name_WtoA( filenameW, len, lpFileName, size ); if (len < size) lpFileName[len] = '\0'; } HeapFree( GetProcessHeap(), 0, filenameW ); return len; } /*********************************************************************** * GetModuleFileNameW (KERNEL32.@) * * Unicode version of GetModuleFileNameA. */ DWORD WINAPI GetModuleFileNameW( HMODULE hModule, LPWSTR lpFileName, DWORD size ) { ULONG magic, len = 0; LDR_MODULE *pldr; NTSTATUS nts; WIN16_SUBSYSTEM_TIB *win16_tib; if (!hModule && ((win16_tib = NtCurrentTeb()->Tib.SubSystemTib)) && win16_tib->exe_name) { len = min(size, win16_tib->exe_name->Length / sizeof(WCHAR)); memcpy( lpFileName, win16_tib->exe_name->Buffer, len * sizeof(WCHAR) ); if (len < size) lpFileName[len] = '\0'; goto done; } LdrLockLoaderLock( 0, NULL, &magic ); if (!hModule) hModule = NtCurrentTeb()->Peb->ImageBaseAddress; nts = LdrFindEntryForAddress( hModule, &pldr ); if (nts == STATUS_SUCCESS) { len = min(size, pldr->FullDllName.Length / sizeof(WCHAR)); memcpy(lpFileName, pldr->FullDllName.Buffer, len * sizeof(WCHAR)); if (len < size) lpFileName[len] = '\0'; } else SetLastError( RtlNtStatusToDosError( nts ) ); LdrUnlockLoaderLock( 0, magic ); done: TRACE( "%s\n", debugstr_wn(lpFileName, len) ); return len; } /*********************************************************************** * get_dll_system_path */ static const WCHAR *get_dll_system_path(void) { static WCHAR *cached_path; if (!cached_path) { WCHAR *p, *path; int len = 3; len += GetSystemDirectoryW( NULL, 0 ); len += GetWindowsDirectoryW( NULL, 0 ); p = path = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) ); *p++ = '.'; *p++ = ';'; GetSystemDirectoryW( p, path + len - p); p += strlenW(p); *p++ = ';'; GetWindowsDirectoryW( p, path + len - p); cached_path = path; } return cached_path; } /****************************************************************** * MODULE_get_dll_load_path * * Compute the load path to use for a given dll. * Returned pointer must be freed by caller. */ WCHAR *MODULE_get_dll_load_path( LPCWSTR module ) { static const WCHAR pathW[] = {'P','A','T','H',0}; const WCHAR *system_path = get_dll_system_path(); const WCHAR *mod_end = NULL; UNICODE_STRING name, value; WCHAR *p, *ret; int len = 0, path_len = 0; /* adjust length for module name */ if (!module) module = NtCurrentTeb()->Peb->ProcessParameters->ImagePathName.Buffer; if (module) { mod_end = module; if ((p = strrchrW( mod_end, '\\' ))) mod_end = p; if ((p = strrchrW( mod_end, '/' ))) mod_end = p; if (mod_end == module + 2 && module[1] == ':') mod_end++; if (mod_end == module && module[0] && module[1] == ':') mod_end += 2; len += (mod_end - module) + 1; } len += strlenW( system_path ) + 2; /* get the PATH variable */ RtlInitUnicodeString( &name, pathW ); value.Length = 0; value.MaximumLength = 0; value.Buffer = NULL; if (RtlQueryEnvironmentVariable_U( NULL, &name, &value ) == STATUS_BUFFER_TOO_SMALL) path_len = value.Length; RtlEnterCriticalSection( &dlldir_section ); if (dll_directory) len += strlenW(dll_directory) + 1; if ((p = ret = HeapAlloc( GetProcessHeap(), 0, path_len + len * sizeof(WCHAR) ))) { if (module) { memcpy( ret, module, (mod_end - module) * sizeof(WCHAR) ); p += (mod_end - module); *p++ = ';'; } if (dll_directory) { strcpyW( p, dll_directory ); p += strlenW(p); *p++ = ';'; } } RtlLeaveCriticalSection( &dlldir_section ); if (!ret) return NULL; strcpyW( p, system_path ); p += strlenW(p); *p++ = ';'; value.Buffer = p; value.MaximumLength = path_len; while (RtlQueryEnvironmentVariable_U( NULL, &name, &value ) == STATUS_BUFFER_TOO_SMALL) { WCHAR *new_ptr; /* grow the buffer and retry */ path_len = value.Length; if (!(new_ptr = HeapReAlloc( GetProcessHeap(), 0, ret, path_len + len * sizeof(WCHAR) ))) { HeapFree( GetProcessHeap(), 0, ret ); return NULL; } value.Buffer = new_ptr + (value.Buffer - ret); value.MaximumLength = path_len; ret = new_ptr; } value.Buffer[value.Length / sizeof(WCHAR)] = 0; return ret; } /****************************************************************** * load_library_as_datafile */ static BOOL load_library_as_datafile( LPCWSTR name, HMODULE* hmod) { static const WCHAR dotDLL[] = {'.','d','l','l',0}; WCHAR filenameW[MAX_PATH]; HANDLE hFile = INVALID_HANDLE_VALUE; HANDLE mapping; HMODULE module; *hmod = 0; if (SearchPathW( NULL, (LPCWSTR)name, dotDLL, sizeof(filenameW) / sizeof(filenameW[0]), filenameW, NULL )) { hFile = CreateFileW( filenameW, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0 ); } if (hFile == INVALID_HANDLE_VALUE) return FALSE; mapping = CreateFileMappingW( hFile, NULL, PAGE_READONLY, 0, 0, NULL ); CloseHandle( hFile ); if (!mapping) return FALSE; module = MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, 0 ); CloseHandle( mapping ); if (!module) return FALSE; /* make sure it's a valid PE file */ if (!RtlImageNtHeader(module)) { UnmapViewOfFile( module ); return FALSE; } *hmod = (HMODULE)((char *)module + 1); /* set low bit of handle to indicate datafile module */ return TRUE; } /****************************************************************** * load_library * * Helper for LoadLibraryExA/W. */ static HMODULE load_library( const UNICODE_STRING *libname, DWORD flags ) { NTSTATUS nts; HMODULE hModule; WCHAR *load_path; if (flags & LOAD_LIBRARY_AS_DATAFILE) { /* The method in load_library_as_datafile allows searching for the * 'native' libraries only */ if (load_library_as_datafile( libname->Buffer, &hModule )) return hModule; flags |= DONT_RESOLVE_DLL_REFERENCES; /* Just in case */ /* Fallback to normal behaviour */ } load_path = MODULE_get_dll_load_path( flags & LOAD_WITH_ALTERED_SEARCH_PATH ? libname->Buffer : NULL ); nts = LdrLoadDll( load_path, flags, libname, &hModule ); HeapFree( GetProcessHeap(), 0, load_path ); if (nts != STATUS_SUCCESS) { hModule = 0; SetLastError( RtlNtStatusToDosError( nts ) ); } return hModule; } /****************************************************************** * LoadLibraryExA (KERNEL32.@) * * Load a dll file into the process address space. * * PARAMS * libname [I] Name of the file to load * hfile [I] Reserved, must be 0. * flags [I] Flags for loading the dll * * RETURNS * Success: A handle to the loaded dll. * Failure: A NULL handle. Use GetLastError() to determine the cause. * * NOTES * The HFILE parameter is not used and marked reserved in the SDK. I can * only guess that it should force a file to be mapped, but I rather * ignore the parameter because it would be extremely difficult to * integrate this with different types of module representations. */ HMODULE WINAPI LoadLibraryExA(LPCSTR libname, HANDLE hfile, DWORD flags) { WCHAR *libnameW; if (!(libnameW = FILE_name_AtoW( libname, FALSE ))) return 0; return LoadLibraryExW( libnameW, hfile, flags ); } /*********************************************************************** * LoadLibraryExW (KERNEL32.@) * * Unicode version of LoadLibraryExA. */ HMODULE WINAPI LoadLibraryExW(LPCWSTR libnameW, HANDLE hfile, DWORD flags) { UNICODE_STRING wstr; if (!libnameW) { SetLastError(ERROR_INVALID_PARAMETER); return 0; } RtlInitUnicodeString( &wstr, libnameW ); return load_library( &wstr, flags ); } /*********************************************************************** * LoadLibraryA (KERNEL32.@) * * Load a dll file into the process address space. * * PARAMS * libname [I] Name of the file to load * * RETURNS * Success: A handle to the loaded dll. * Failure: A NULL handle. Use GetLastError() to determine the cause. * * NOTES * See LoadLibraryExA(). */ HMODULE WINAPI LoadLibraryA(LPCSTR libname) { return LoadLibraryExA(libname, 0, 0); } /*********************************************************************** * LoadLibraryW (KERNEL32.@) * * Unicode version of LoadLibraryA. */ HMODULE WINAPI LoadLibraryW(LPCWSTR libnameW) { return LoadLibraryExW(libnameW, 0, 0); } /*********************************************************************** * FreeLibrary (KERNEL32.@) * FreeLibrary32 (KERNEL.486) * * Free a dll loaded into the process address space. * * PARAMS * hLibModule [I] Handle to the dll returned by LoadLibraryA(). * * RETURNS * Success: TRUE. The dll is removed if it is not still in use. * Failure: FALSE. Use GetLastError() to determine the cause. */ BOOL WINAPI FreeLibrary(HINSTANCE hLibModule) { BOOL retv = FALSE; NTSTATUS nts; if (!hLibModule) { SetLastError( ERROR_INVALID_HANDLE ); return FALSE; } if ((ULONG_PTR)hLibModule & 1) { /* this is a LOAD_LIBRARY_AS_DATAFILE module */ char *ptr = (char *)hLibModule - 1; UnmapViewOfFile( ptr ); return TRUE; } if ((nts = LdrUnloadDll( hLibModule )) == STATUS_SUCCESS) retv = TRUE; else SetLastError( RtlNtStatusToDosError( nts ) ); return retv; } /*********************************************************************** * GetProcAddress (KERNEL32.@) * * Find the address of an exported symbol in a loaded dll. * * PARAMS * hModule [I] Handle to the dll returned by LoadLibraryA(). * function [I] Name of the symbol, or an integer ordinal number < 16384 * * RETURNS * Success: A pointer to the symbol in the process address space. * Failure: NULL. Use GetLastError() to determine the cause. */ FARPROC WINAPI GetProcAddress( HMODULE hModule, LPCSTR function ) { NTSTATUS nts; FARPROC fp; if (!hModule) hModule = NtCurrentTeb()->Peb->ImageBaseAddress; if (HIWORD(function)) { ANSI_STRING str; RtlInitAnsiString( &str, function ); nts = LdrGetProcedureAddress( hModule, &str, 0, (void**)&fp ); } else nts = LdrGetProcedureAddress( hModule, NULL, (DWORD)function, (void**)&fp ); if (nts != STATUS_SUCCESS) { SetLastError( RtlNtStatusToDosError( nts ) ); fp = NULL; } return fp; } /*********************************************************************** * GetProcAddress32 (KERNEL.453) * * Find the address of an exported symbol in a loaded dll. * * PARAMS * hModule [I] Handle to the dll returned by LoadLibraryA(). * function [I] Name of the symbol, or an integer ordinal number < 16384 * * RETURNS * Success: A pointer to the symbol in the process address space. * Failure: NULL. Use GetLastError() to determine the cause. */ FARPROC WINAPI GetProcAddress32_16( HMODULE hModule, LPCSTR function ) { /* FIXME: we used to disable snoop when returning proc for Win16 subsystem */ return GetProcAddress( hModule, function ); }